Doing Facebook for small business? It’s still alive, but the way it used to work is dying or nearly dead. Posting every day? That’s a fast track to burnout. Random boosts? Usually a waste of money.

I blame my Facebook Marketplace addiction on the fact that I work alone, from home. Plus, I am always on the hunt for cool stuff. In my defense, as addictions go, it beats crack, it’s fairly harmless, ...